Answer:
The answer is 28
Step-by-step explanation:
The numbers on the right and bottom- for example 5 and 5 in the first one, you multiply them, and then you add the number on the left. So it's 5 * 5 + 5 which is 30.
The 2nd one, you multiply 9 * 8 and you get 72. Then you add 7 and get 79.
For the third one, you multiply 24 * 3 and get 72. Then you have to find the ?. So i did 100- 72 and you get 28.
So that makes sense, 24 * 3 + 28 = 100